PPT-Energy, Work, Power, and Mechanical Advantage

14 explain the relationship between work and power using narrative and mathematical descriptions and apply to realistic situations GPS HSGT SCPHC200514 14a calculate the work on a body by constant force. 978 978 915 915 978 Input Torque Capacity lbft 14502050 2250 14501650 14501650 14501650 14501650 15501750 1650 15501750 15501750 Engine Coupling Dry Clutch Dry Clutch Dry Clutch Dry Clutch Dry Clutch Dry Clutch Dry Clutch Dry Clutch Dry Clutch Dry C . Outline. - First Law. - Heat and Friction. - Thru and Across Variables. - Energy Supply of Planet Earth . - Go-Cart . . (platform for converting electrical to mechanical energy). TRUE / FALSE. EQ: How do we gain from trade?. What was the most important. document written in 1776?. written by. Adam Smith. The Father of Economics. The Wealth of Nations. He is my great, great, great, great, . Work done by a muscle. Differential work. Work along a path. Special case: F and v are collinear. Reaction forces and velocities at a joint.. Mechanical power (rate of mechanical energy transfer) equals dot product of force and velocity.. In text: Ch 5. Do you already know these words?. Work – . Energy – . Power – . 2.3.1 Outline . what is meant by work.. First a demo:. One volunteer. Hold a couple of books and walk across the room.. Chapter 14 Section 3. Mechanical Advantage. The . mechanical advantage. of a machine is the number of times that the machine increases an input force. Suppose a nut is in a nutcracker at position A . Work . = W. The product of the force . F . applied to an object over a distance . d . in which the object travels as a result of the force. Joule . (J) . is the base unit of work. (Force and distance must be parallel to each other). Energy. The capacity of vigorous activity. The ability to act. The capacity of a body or a system to do work (and heat). . . Mechanical . Energy: Kinetic . + Potential. h. Use directly for hydro . energy storage . IPC Spring . 2014. Energy, Work, Power & Machines. 1. Energy. is the ability to do work. .  . Potential energy. – stored energy or energy due to position.  . PE=m g h . m. is mass (kg). g. (Chapter 4). Student Learning Objectives. Compare and contrast . mechanical work. , energy, . and power. N. ame . examples of simple . machines. Describe . renewable energy sources.. https://www.youtube.com/watch?v=eh7uFumf-vc. - First Law. - Heat and Friction. - Thru and Across Variables. - Energy Supply of Planet Earth . - Go-Cart . . (platform for converting electrical to mechanical energy). TRUE / FALSE. Heat is a form of energy, and has units of Joules.. . 1. . A crate of bananas weighing 3000 N is shipped from South America to New York, where it is unloaded by a dock worker who lifts the crate by pulling with a force of 200 N on the rope of a pulley. What is the actual mechanical advantage of the system? . What is a machine?. A machine is simply a device that makes doing work easier. . Even a sloping surface can be a machine. . Using Machines. Mechanical Advantage. Even though machines make work easier, they don’t decrease the amount of work you need to do. . Chapter 6 Work and Machines A. Work Work transfer of energy through motion force exerted through a distance W = Fd Distance must be in direction of force! W : work (J) F : force (N) d : distance (m)